The simple interest on a sum for 5 yr is one-fourth of the sum. The rate of interest per annum is

• 5%

• 6%

• 4%

• 8%

Simple interest on a certain sum is 16/25 of the sum. The rate of per cent, if the rate per cent and time (in yr) are equal to

• 6%

• 8%

• 10%

• 12%

₹ 800 becomes ₹ 956 in 3 yr at a certain rate of simple interest. If the rate of interest is increased by 4%. What amount will ₹ 800 become in 3 yr?

• ₹ 1020.80

• ₹ 1025

• ₹ 1052

• ₹ 1050

The rate of simple interest at which a sum of money becomes three times in 25 yr is

• 8%

• 5%

• 4%

• 6%

The simple interest on ₹ 4000 in 3 yr at the rate of x% per annum equals to the simple interest on ₹ 5000 at the rate of 12% per annum in 2 yr. The value of x is

• 6%

• 8%

• 9%

• 10%

The interest on a certain sum of money is ₹ 22 and the discount on the same sum for the same time and at the same rate is ₹ 20, find the sum.

• ₹ 220

• ₹ 200

• ₹ 210

• ₹ 212

In certain years a sum of money is doubled itself at  simple interest per annum, then the required time will be

• 16 yr

• 

• 

• 8 yr

A person lent certain sum of money at 5% per annum simple interest and in 15 years the interest amounted to ₹ 250/- less than the sum lent. What was the sum lent (in ₹)?

• ₹ 1,000/-

• ₹ 1,500/-

• ₹ 2,400/-

• ₹ 3,000/-